[USN-3955-1] tcpflow vulnerabilities

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[USN-3955-1] tcpflow vulnerabilities

Mike Salvatore
Ubuntu Security Notice USN-3955-1
April 24, 2019

tcpflow vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS


tcpflow could be made to crash or expose sensitive information over the network
if it opened a specially crafted file or received specially crafted network

Software Description:
- tcpflow: TCP flow recorder


It was discovered that tcpflow incorrectly handled certain malformed network
packets. A remote attacker could send these packets to a target system, causing
tcpflow to crash or possibly disclose sensitive information.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
  tcpflow                         1.4.5+repack1-4ubuntu0.18.10.1
  tcpflow-nox                     1.4.5+repack1-4ubuntu0.18.10.1

Ubuntu 18.04 LTS:
  tcpflow                         1.4.5+repack1-4ubuntu0.18.04.1
  tcpflow-nox                     1.4.5+repack1-4ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  tcpflow                         1.4.5+repack1-1ubuntu0.1
  tcpflow-nox                     1.4.5+repack1-1ubuntu0.1

In general, a standard system update will make all the necessary changes.

  CVE-2018-14938, CVE-2018-18409

Package Information:

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